Fuel-briquet composition for iron-ore reduction.



ore.

LGEWH, F CHICAGI),

F III 018, ASSIGNOR OF FGRTY Ohl'lE-HUNDREDTHS '10 GEORGE E. STONE, OF CHICAGO, ILLINOIS.

' FUEL-BRIGHT COMPOSITION FOR IRON-ORE REDUCTION.

Ito Drawing.

making fuel briquets suitable for use in reducing iron ore, and has for its object the provision of a briquet using the waste from coke furnaces and providing a briquet that will not disintegrate'under the heat of combustion required in reducing iron'ore end the provision of limestone that acts as a flux required in the process of reducing iron In making my improved briquet I take one hundred (100) parts by bulk of coke dust and screenings that are the waste prodnot of coke ovens and add thereto from one (1) to two (2) parts bybulk of coal oil thoroughly mixing the coal oil with from five (5) to ten parts, by bulk, of ground limestone, the limestone being reduced to a substantially No. powder. I then take twenty-five parts by bulk, of cement, either Portland or sla and mix with the cement twenty-five (25 parts by bulk, of water forming a liquid solution which is afterward thoroughly incorpo-.

rated with the coke dust and screenings, the coal oil and the ground limestone heretofore referred to. i

Specification of Letters Patent.

Application filed April It, 1318. serial No. 761,126.

Patented Mar. 9, 1915.

The mixing of the ingredients can be accomplished by hand if desired but I prefer to use a concrete mixer of any preferred type in order to thoroughly mix the different lngredients to a plastic mass. The plastic composition heretofore described is then placedin molds of suitable size and shape and allowed to remain in said molds until the composition hardens, when the mold blocks are removed from the molds and thoroughly dried.

The blocks are used for fuel in the ordinary way and it has been found that the block retains its integrity under the heat of combustion and is not reduced to a powder except as the fuel products are consumed leaving the cement and limestone to pass 03 from the furnace in the shape of slag along withthe other waste products of the iron ore in the course of reduction to the metallic state.

Having thus described what I claim is:

A plastic composition for forming fuel briquets for iron and ore reduction processes consisting of substantially one-hundred (100) parts of finely comminuted coke, from two (2) to five (5) parts of crude petroleum, from five (5) to ten (10) parts of ground limestone, twenty-five (25) parts of cement, and twenty-five (25) parts of water, said composition being mixed to gether and molded into bri uets.

In testimony whereof I a 'x my signature in presence of two witnesses.

' WILLIAM LOESCH.

y invention,

Witnesses:

Gnonon B. SToRnR,

Jes. A. FOLEY. 

